Electric regulation.



J. L. CREVELING.

ELECTRIC REGULATION,

APPLICATION FILED NOV 17, 1911- Patented Jan..5, 1915.

1 jnwsnrmn.

WITNESSES L. JC EVELI NG;

- 5 a resident-of'NewYork; inithe county and 2 lating devices when its voltege is; substan-.,

StateJot-New.Yoi'k,ihave invented eertain v 1 v new? and i sfefl l,lmprovementsfm -Electric 0f the translating devidesfareieari'ied to the 160 ELECT IC 'eeeetiinoinf' j;

speciijcetionti I ttelfs lateht htApplicetionifiied Noyeihhei PC1911.

12+Pat nteq3an;i5,i915. :s'eriai meme;

; store'gebat'tery,lg andlamps or. other ti aiis-.

main I;connected withi onetei hinalpfjthe l ti ansl etioncl'i 'eultijeguletqi'; in this instanee ndicated as a eerbQn-pilefm, haVing-ifiSLQP- -posite ter minal in coinm inieation' witlithe,

electric regulation .wherein it. is desired; to

, 'regulate- :a, geneiator a, predeter r' ine mannerand hasierits partic'ulai; b ect t9 provide, means Wliereh'y a g'enelajtoi driven at variablespeeds will be eutematically g-d v ernedg. to properly charge a, storage battery andlsupply'lemps div ether translating de- Wire 1;? ineleetyic-alhemiiiuiiiehtionjyith the} "6T5: negative side of thstorage battery=13 ,dne 0f the terminals of thef'autoinaticfls'wifch 1 centrolled by'the .pesition 0f the conducting;

member, 18. .-The. opposite terminaLbfJ-the J I said switch is cqnneetedf through a;-' series Zo i eeil I9 t( the Wire-2Q which eo iineeted 1,

tia-lly'equa'l t0 that hf the same and di'scbnv nected Within a. nahrqw margin oflthis: fsame voltage regardless 'ef ,the 1' variations th be 'met in storage battery-Voltage m Tpraetlce.

"the generator! H A 2 3 is an adjustable screw limiting-theme:

The drawing is a -d.i'egramma,tic rep'resentation of one-type (if sy sterh embodying H sa1d;member is carried bythe ,ma fi the essentialsof my invention.

Infthe' drawing, ;1 represents adynanio 01' generator pro'vided.withlthe-usual field cpil 2 heyingrthe Ireeis'tances t3 "and .5 1nser1es. there-with. These resistances are lndrcated as'aoffthe" ordinary carbon pile variety mesistaii'ces ;3 and 5'are serieswith the fielki 6 is-a lever of magnetic material ,8 and thus metion 9' 's eleven drawn in aiffupivve d dii'ee'tion ASH-by the: adjustable spring 10 in Such ,manner a'stb tend t'o, compresis the OaEbQD pile '5 and 'lewer its r'esistance: -The lever .9 is

provided at orie extremity with a, (5011 11 efmagnetic matei'i'a-l fwhereb motion imparted tojthe said c'pre -n ey I'Bgu atethe generatoy;-L I 1,2 @ztfiteemtsfihepe i v l a he'l en-i fim it re l t interposes esismn l 110 v jive normally drawn; m an upward -is;in cdnnection' withthe negeti elead' ef;

with one endfofthe solenoid-tail 2-1 ;sur;- di e f 1. ann rfihafi when energized 1t tends te-;dr aw th'e'iis'anie The Oppoite tel minal of the solenoid 21 Y tiQn Ithait-een be given to"';the' eemiuctingiw member' 18 in a downwamdj dii ectien Spring 25 and' cldse the 'circ iitbetweefl' the generator enema balttery'and tm l lating 991 ngifrom the generator it fasgist'i igf generat qr andsov ai ranged i that xyhenyener :gized it tends-tejdrawthe .eoi e ifi ddwn-f g ,r ward ly' and increasethe resi'stance3; Eromthe inain 1531 1118, 'wirei 29 -is earIiedf-to the ';munieation withlene te 'mifiallofgthe sg 1 en0id;- g i ;coi1.,3L suri'oun lmg the core 21; .jiQf' the main .switvchend hav ng its epp sitetrn iiimlkeonf 31 islso disposedthat when thetrzifisletion The operation 'of my invention is sub stantially' as follows: Starting withthe gen- .erator at rest and the main switch" open and the storage batteries at the normal voltage or the minimum desired to have impressed across the translation circuit, the resistancc 16 will be at the minimum value and substantially zero in an ordinary systemand, of course, therewill be practically no drop acrossthe resistance 16 and no appreciable'current flowing in the coil 81; If

now the generator be startedand its voltage be brought up. to substantially the same voltage as that of the'battery, I so adjust the spring 25 that the coil 27 will close the main switch through conducting member 18 and cut the generator into circuit with the storage battery and translating devices across a break of substantiallyzero difference of potential and, therefora' there will be, no sudden rush of' current to or from the battery and no back discharge tending to open the switch and no fiicker caused upon the lights by the connection ofthe generator with thecircuit. It now, with the batteries at their normal 'or. minimum working voltage-the generator speed be iiicreased until its voltage be suilicient to supply the maximum current desired, I then so adjust the spring '10 that any increase in current above this desired maximum will a draw the core- 11 downwardly and increase the resistance 5 in such manner as to prevent this max mum desired current from being exceeded throughout increases of gen' erator speed. If new the generator continue to supply current at this rate until the battery voltage has risen, the voltage;

across the translation circuit will tend to rise and-I so adjust the spring 33 that any increase in voltage across the translation circuit will cause the solenoid coil 34 to lift the lever 22 and increase theresistance 16 n such manner as to hold the translation circuit voltage constant. This 'will, of course, cause a drop across resistancellfi and current will then flow through the solenoid coil 31 and tend to weaken the eflect of solenoid coil 27; If the generator continue --to charge the battery until its voltage reach the maximum desired to have across the same, I then so adjust the spring 7 that any increase above this voltage will cause the solenoid coil 28 todraw the core 8 downwardly and increase the resistance 3 in such manner as to prevent this voltage from be.-

ing exceeded. It now the generator slow down and its voltage fall until substantially equal to that of the storage battery with zero current supplied by the enerator, I

then so adjust the resistance 30 that the cur- A rent flowing around resistance 16 through. the coil 31 will so affect the coil 27 that anextremely small back discharge through the coil 19 will'cause the main switch to open and break the connection with the generator circuit and if this voltage remain constant across the battery, the main switch will not close until a slight excess above the opening voltage is reached across thecoil 27 and the switch will bevclosed when the generator voltage is substantially equal to that of the battery regardless of the fact that the battery'voltage has risen so as to cause a considerable drop across resistance 16. For ex ample,--in practice, in a 60 volt system, if the battery be 60 volts and the resistance 16 be practically nil and-the voltage upon the translation-circuit therefor substantially GU-volts, the main switch may be so arranged that substantiallyv 60 volts across the generator will close the same, then a very slight drop below 60 will cause the switch to open. If, however, the battery voltage be 7 5 volts, the 15 volts drop across resistance 16 will cause such an eiiect through the in'strumentality of the coil 81 .that 7 5 volts will be required across the coil 27 to close the switch, and a very slight drop below volts on the generator may be caused to open the same, the switch working on' a very narrow margin and adjusting itself to open and close at substantially the battery voltage.

Ido not wish inany way to limit myself to. the exact details of construction nor to the exact mode of operation-set forth herein in describing one type of system embodyingthe elements of my invention, for it will be obvious that wide departure may be tion which is as set forth in-the following claims:

1. The combination with'a source of variable electromotive force, a storage battery,

a translation circuit and means forregulating the translation circuit, of automatic means for connecting the storage battery with said source affected by the operation of the translation circuit regulator.

2. The combination with a source of vari-. ableelectrornotive force, a storage battery,

a translation circuit and means for regulating the translation circuit, of automatic means for connecting the storage battery with said source and means whereby the translation circuit regulator affects the same.

made in the way of details without departing from the spirit and scope of my inven V lation circuit and the storagebattery af- I fects the same.

4. The combination with a generator, a

main circuit, a storage battery and a translation circuit, of means for controlling the translation circuit, of means for manipulatmain circuit affected by the difference of potential between the translation circuit and the storage battery.

5. The combination-with a generator and a supply circuit, a storage battery, a translation circuit and means for regulating the ing the supply circuit affected by the operation of the translation circuit regulator;

6. The combination with a generator, a storage battery and a translation circuit, of means for. regulating 'the translation circuit, means for controlling the connection, of the-generator with. the storage battery and translation circuit and means foraffecting said controlling means aflected by the translation circuit regulator.

storage battery-and-a translation circuit, of

- means for regulating the translation circuit,

means for controlling the connection of the generator with the 1 storage battery and translation circuit and means for affecting said controlling means affected in accordance with the drop in potential across the translation circuit regulator.

8. Thecombination with a generator, a

storage battery and a translationcirc'uit, of means for regulating the translation circuit, means for controllingthe connection of the generator with the storage battery and translation circuit and means for affecting saidcontrolling means affected by voltage variation caused by the translation circuit regulator.

9. The combination with a generator, a main circuit, a storage battery, a translation circuit, a regulator for the translation circuitv responsive" to voltage fluctuations, a

regulator for the generator permitting certain voltage variations in the regulation" of the same and means for controlling the connection between the'generator. and the stor- 7. The combination with a generator, a

age battery dictated by the generator voltage and by the translation circuit regulator.

10. The combination with a generator, a main circuit, a storage battery, a translation circuit, a regulator for the translation circuit responsive to voltage fluctuations, a regulator for the generator permitting certain voltage variation in the regulation of the same and mean's for controlling the connection between the generator and the storage battery affected by the difference in potential between'the storage battery and the translation circuit.

11. In an automaticrsystem of electric regulation comprehending a generator and regulator therefor, a storage battery, a translation circuit, a regulator therefor and a main switch adapted to automatically con.- trol the connection of the generator withv the storage battery and translation circuit and means for a ecting the operation of said switch affected by the translation circuit regulator.

12. 111 an automatic system of electric regulation comprehending a generator and regulator therefor, a storage battery, a translation circuit, a regulator therefor and a main switch adapted to automatically control the connection of the generator with the storage batter and translation circuit and means for a ecting the operation of said switch affected'by the diiference in potential between. the storage battery and the translation circuit. I

13. The combination with a source of electromotive force, a storage'battery', a translation circuit and automatic means for connecting the storage battery and translation circuit with said so irce, of means-for regulating the translatlon circuit voltage and affecting the operation of said connecting means. s

14. The combination with a source of-elece tromotive force, a storage battery, a translation. circuit and automatic means for connecting the storage battery and, translation circuit with said source, of meansfor regulating the translation circuit and means whereby the same afiects the said connecting means. v

I v JOHN L. CREVELING. w'itnessesi .ANNA M. WALL,

I M.-H1=:RsKov 1Tz. 

